Window frame parting stop



Dec. 3, 1946. H. G. WOMACK WINDOW FRAME PARTING STOP Filed Jan. 21, 1944 I jjMm/wrm fiall omaok Patented Dec. 3, 1946 UNITED STATES PATENT OFFICE 2,412,189 wnvnow FRAME PARTING STOP 7 Harry G. Womack, Atlanta, Ga. 7 I Application January 21, 1944, Serial No. 519,208-

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This invention relates generally to improvements in building construction and pertains particularly to improvements in parting stops for the sides and top of a window frame.

A primary object of the present invention is to provide an improved parting stop construction for window frames wherein the parting stop has relative movement in a recess in the side jamb of the frame and is constantly urged against the adjacent sash stile whereby to maintain a firm contact with the stile at all times with the double advantage of preventing looseness and rattling of the. sash and stopping drafts.

Another object of the invention is to provide an improved parting stop construction in which the stop is maintained in position in a receiving channel in the window frame, solely by means of a spring member which functions to force the stop at its outer edge, into a firm contact with the adjacent window sash stile.

A further object of the invention is to provide in a window frame construction, improved pressure parting stops which are designed to be easily installed and which function in cooperation with the adjacent sash stile Without requiring any alteration in the standard construction of the sash.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing, it being understood, however, that the invention may be modified so long as such modifications do not depart from the spirit of the invention as expressed in the appended claims.

In the drawing- Figure 1 is a vertical sectional view through a window frame showing the present invention applied thereto.

Figure 2 is a horizontal section taken substantially on the line 2-2 of Figure 1.

Figure 3 is a horizontal sectional view taken on the line 33 of Figure 1.

Referring now more particularly to the drawing, the numeral It! generally designates a window frame comprising the top and side jambs l i and 12 respectively, and the sill l3.

The upper and lower sash are designated l4 and I5 respectively and these are maintained in position in the frame, in the customary manner between the blind stop [6 and the inside stop 11.

In order that the contact between the top sash top stile l8 and the bottom stile IQ of the lower sash may be tight with the top jamb and sill with which they respectively abut, each of these stiles is provided with the longitudinal groove 2 I 20 while the top jamb and the sill are each pro vided with'a tongue 2| for engagement in the groove of the sash stile abutting thereagainst.

In accordance with the present invention each side jamb is provided in its inner face, in a plane passing between the upper and lower sash, with the parting stop channel 22. Each of these-chamnels extends throughout the length of'the side jamb in which it is formed.

In each par-ting stop channel 'is an upper part ing stop 23 and a lower parting stop 24 which are engaged together at their adjacent ends so as to form a continuous parting stop for separating the sashes as they are moved up and down.

The outer side face of the upper parting stop 23 and the inner side face of the lower parting stop 24 has a longitudinally extending recess formed therein as indicated at 25 so that there is formed a sash stile engaging tongue 26 adjacent the inner edge of the stop and .a fulcrum corner 21 adjacent the outer edge of the stop, which bears against a Wall of the parting stop channel in which the stop is located. The recess 25 in the face of the parting stop allows for a certain amount of rocking movement of the stop on the fulcrum edge 21 particularly where the face of the side stile of the sash engaged by the stop tongue 25 may be worn sothat such face of the stile is out of the plane of the wall of the stop recess which is engaged by the corner 21.

Within the channel 22 at the face of the stop opposite from that face in which the recess 25 is'formed, are two or more fiat springs 28 each of which is secured in the channel 22 and each bearing in a slot 29 formed in the adjacent face of the parting stop. Thus the springs, secured by screws 30 or in any other suitable manner, and engaging in the slots 29 in the adjacent faces of the parting stops function as the sole means of maintaining the parting stops in position in their channels. The channels are, of course, initially of sufiicient depth and width to permit the insertion of the stops by pressing the latter back against the springs until the stops can he slipped into the channels whereupon the engagement of the springs in the slot 29 will serve to maintain the stops against accidental displacement.

Each of the longitudinal tongues :26 will engage a face of a stile 3| of the adjacent sash and will maintain sliding contact with such stile at all times whether the sash is stationary or in movement. It will be readily seen, therefore, that the stops will not only function to hold the sash from rattling but also will form an effective sealing means against the entrance of air between the sash and the frame jamb.

I claim:

1. In a window frame and sash construction, including a frame having side jambs, sash in the frame between the jambs, and a parting stop channel formed longitudinally in each of said jambs; two independent parting stops in each channel in end, abutting relation and having movement in and transversely of the channel, each stop' having a recess extending lengthwise of one face thereof forming a longitudinal tongue, said tongue lying outside the channel and having constant sliding contact with a side stile of one adjacent sash only, and resilient means housed entirely within the channel engaging one side of and constantly urging the adjacent stop in a direction to press the stop tongue against'the said side stile.

2. In a window frame and sash construction, including a frame having side jambs, sash in the frame between: the lambs, and a parting stop channel formed longitudinally in each jam-b; two independent parting stop strips ineach channel in end toend relation and each having a length substantially equal to a sash, the channel being ofa width to permit substantial movement of the parting stops transversely thereof, each of said parting stops having a recess extending longitudinally the full length of one side face and forming, adjacent to the edge lying. in the channel, a longitudinal fulcrum corner bearing against the adjacent wall of the channel and further forming, adjacent to the outer' edge of 4 v the stop, a longitudinal tongue bearing against the adjacent side stile of one sash, and spring members interposed between each stop strip upon the side thereof opposite from the recess and the adjacent wall of the channel and constantly urging the stop strip to rock on said corner in a direction to maintain tight contact between the stop strip tongue and the adjacent sash stile.

3. A window frame and sash construction as set forth in claim2, in which. each. of saidvsprings has frictional engagement only in a slot in the adjacent side fac of the stop, and means securmg each spring in the channel whereby the spring retains the stop in the channel.

4'. In a window frame and sash construction, including a frame having side jambs, sash in the frame between the jambs, and a parting stop channel formed longitudinally in each of said 'jambs; two independent parting stops in each channel in end abutting relation and having movement transversely of, the channel, each stop having a recess extending. lengthwise of one face thereof, forming a longitudinal. tongue, said tongue lying outsid the channel and having constant sliding contact with a. sidestile of one adjacent sash only, and resilient means in'the channel engaging and constantly urging the adjacent. stop 'in a direction to press the stop tongue against the said side stile, the longitudinal recess in each. stop providing a fulcrum corner longitudinally of the stop and lying. within the channel and engaging a wall of the channel, th stop having, rocking movement on said corner.

' HARRY G; WOMACK. 

